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Ionic liquid-induced strategy for FeWO4 microspheres with advanced visible light photocatalysis
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| 【文章作者】Chen, Zhigang;Ma, Huijin;Xia, Jiexiang;Zeng, Jie;Di, Jun;Yin, Sheng;Xu, Li;Li, Huaming |
| 【文章摘要】 Novel ferrous tungstate (FeWO4) microspheres have been first synthesized via a ethylene glycol (EG)-assisted solvothermal process in the presence of reactable ionic liquid 1-octyl-3-methylimidazolium tetrachloroferrate [Omim]FeCl4. The as-prepared FeWO4 materials were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), energy-dispersive X-ray spectroscope (EDS), Transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), diffuse reflectance spectroscopy (DRS) and photocurrent. During the preparation process, [Omim]FeCl4 played important roles as reactant and template at the same time. Moreover, the photocatalytic activities of FeWO4 microspheres were evaluated on the degradation of Rhodamine B (RhB) under visible light irradiation. FeWO4 microspheres exhibited a significant improved photocatalytic performance for degradation of RhB under visible light irradiation. A possible mechanism of FeWO4 on the enhancement of visible light performance was proposed. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
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【卷】42 【ISSUE】7 【ISSUEID】815C0073
【文章期份】2016
【发布日期】2016/8/11 17:03:44
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